EV Motor Suggestion, Please?

by Yadira
(Daytona Beach, FL)

I'm working on a project and I have to choose an electric motor. I need about 15KW of power and as much torque as possible. It for an off-road vehicle that we are trying to design a fuel cell system for it. Could you suggest a motor?

Hi, Yadira!
Here's what I'd do: ask Netgain Motors.

Any EV drag racer will tell you that Netgain's WarP and ImPulse motors are the lords of torque!


What's more, they've got their own motor selection software, so that you just tell them what kind of vehicle you're building, how heavy it is, what you need it to do, what conditions you'll be driving in...and they'll tell you which motor is the right one.


NetGain Motors, Inc.
900 North State Street, Suite 101
Lockport, Illinois 60441
Voice: 630-243-9100
Fax: 630-685-4054

Regards,
Lynne

P.S. Read more about electric car motors here.

Best size for electric car motor?

by Martin
(England)

What is the best sized electric car motor?

Hi, Martin!

Medium. (Okay, just kidding, I'll explain.)

When you're choosing an electric car motor, you'll want to keep several things in mind:


First, how much weight do you have to move, and how fast do you want it to accelerate? The heavier the load and the snappier the acceleration, the more powerful the motor will need to be.
Take that Tesla up there, for example - mucho accelerado; )

Second, is it a DC motor or an AC motor? You can get a good conversion kit for either set-up; the AC drive system is more efficient.

Third, are you keeping your transmission, or ditching it for direct drive? Direct drive requires a more powerful motor.

Fourth, how hilly is your terrain? If you drive your EV in hilly territory, like me, then let that sway you to the next larger size motor.

As is often the case, Martin, bigger IS better... no matter what they say.

Why? Because if you get a motor too small for the job you're asking it to do, you'll overheat it, you'll stress it out, and sooner or later it will give out. Expensively.

The only downside of getting too big a motor, erring on the side of too large, is that you're adding weight that might be better spent on batteries.

Regards,
Lynne

EV Motor Sizing

by James A
(Villa Park, CA)

Choosing Electric Car Motor Size

by Ivan D. Moore
(Bellingham, WA)